/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * 
 */

package org.apache.jorphan.gui;

/**
 * Renders a rate in a JTable.
 * 
 * The output is in units appropriate to its dimension:
 * <p>
 * The number is represented in one of:
 * - requests/second
 * - requests/minute
 * - requests/hour.
 * <p>
 * Examples: "34.2/sec" "0.1/sec" "43.0/hour" "15.9/min"
 */
public class RateRenderer extends NumberRenderer{

	public RateRenderer(String format) {
		super(format);
	}
	
	public void setValue(Object value) {
		if (value == null || ! (value instanceof Double)) {
			setText("#N/A"); // TODO: should this just call super()?
			return;
		}
		double rate = ((Double) value).doubleValue();
		if (rate == Double.MAX_VALUE){
			setText("#N/A"); // TODO: should this just call super()?
			return;
		}
		
	    String unit = "sec";

	    if (rate < 1.0) {
	        rate *= 60.0;
	        unit = "min";
	    }
	    if (rate < 1.0) {
	        rate *= 60.0;
	        unit = "hour";
	    }			
	    setText(formatter.format(rate) + "/" + unit);
	}
}